👉 The term "Caenestheriellidae" is a genus in the family Caenestheriidae, which includes several species of small, herbivorous insects that are part of the order Coleoptera. These insects have a long, slender body and a distinctive compound exoskeleton made up of tough fibers called callus cells. The primary role of these insects is to feed on various plant materials by piercing their bodies with their sharp claws or teeth.